MEMPHIS — Prosecutors say a 26-year-old man has been found innocent by reason of insanity in the fatal shooting of his father in Shelby County.

Criminal Court Judge Bobby Carter ruled Monday that there was no dispute that Alexander Shelton killed his father and that he did not understand the wrongfulness of his actions at the time because of a mental disorder.

His father, 55-year-old accountant Lauren Shelton, was found shot to death on June 16, 2012, inside the family's home.

A psychologist said Shelton suffered from a major psychotic disorder at the time.

The judge referred Shelton to a state mental facility for further evaluation to determine whether he is committable and whether he poses a danger to himself or others.